Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
Weather Guide
Hongdo, South Korea Average Monthly Weather
Weather score44Mixed annual avg
Best months: September, August, July
Across the year, average daytime temperatures are around 18°C, sunshine averages 6.3h per day, and rainfall totals about 1257mm. Sea temperatures average 16°C across the year.
Annual weather
Annual averages
Temp
18°C
Rain
1257mm
Annual total
Sun
6.3h
Sea
16°C
Weather score
44
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 241mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Hongdo, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July28°C average high
July is one of Hongdo's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
July241mm average rain
July is one of Hongdo's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to March, May, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July6.1 hours average sun
July sits close to Hongdo's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to May and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July23°C average sea
July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
July55 weather score
July scores above Hongdo's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsAugust to September
These months have the strongest weather score in the monthly averages.
